The first sample of powdered rock from Mars extracted by the NASA's Curiosity rover drill is pictured in this February 20, 2013 NASA handout photo. The image was taken after the sample was transferred from the drill to the rover's scoop. The scoop is 1.8 inches (4.5 centimeters) wide. The image has been white-balanced by NASA to show what the sample would look like if it were on Earth. (Photo by NASA/Reuters/JPL-Caltech/MSSS/Handout)
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